Method of dyeing yarn.



J. G. HEBDEN & F. H. DANIELL.

METHOD OF DYEING YARN.

APPLICATION FILED APR. 16. 1908.

Patented July 4, 1911.

Fig 4.

W/T/VESSE Afro/WW5 Mal/ 1.

NITED STATES PATENT OFFICE.

JOHN C. HEBDEN, OF PROVIDENCE, RHODE ISLAND, AND FREDERICK H. DANIELL, OF

FRANKLIN, NEW HAMPSHIRE; MARY B. DANIELL, OF FRANKLIN, NEW HAMP- SHIRE, EXECUTRIX OF SAID FREDERICK H. DANIELL, DECEASED.

METHOD OF DYEING YARN.

996,761. Specification of Letters Patent. Patented July 4, 1911,

' Application filed April 16, 1908. Serial No. 427,379.

To all :whom it may concern: it is desirable to have the yarn: in as long Be 1t known that we, JOHN C. HEBDEN and FREDERICK H. DANIELL, citizens of the United States, residing at Providence, in the county of Providence and State of Rhode Island, and at Franklin, county of Merrimack, State of New Hampshire, have invented certain new and useful Improvements in Methods of Dyeing Yarn, of which the following is a specification.

Our invention relates to the art of dyeing yarn in the cop or package, and consists of improvements in the method of preparing, arranging and treating the cops indyeing or similar processes, such as oxidizing, mordanting, bleaching, steaming, scouring, drying, washing, or the like.

The invention is fully set forth in the following specification, illustrated by the accompanying drawings, in Wl'llCll Figure 1, is a sectional View showing the preferred form of cop, and the tube for supporting the same; Fig. 2, a view illustrating one method of arranging a plurality of cops under compression, for subjection to the dyeing or other process; Figs. 3 and 4:, views showing other methods of performing the same function.

In Fig. 1, isshown acop or package of yarn A ofcylindrical'form, wound on a tube B, which is longitudinally contractible under pressure. The preferred form of cop-tube is shown and particularly described in an application for patent, Serial No. 417,419, filed Feb. 24th, 1908, and consists, essentially, of a flexible sleeve 6, of reticulated fabric, supported and distended in tubular form by a helical coil of wire 0, or by an equivalent skeleton or ribbed framework which will allow the tube to be contracted along its axis. This form of tube is particularly adapted for cops wound to a large diameter and capable of containing a maximum quantity of yarn compacted in a minimum space and susceptible of being freely unwound in the various transferring processes of manufacture for lengths as possible, to avoid tying it up in the making of thread or fabric, and the present form of cop provides a much greater length than in skeins, hanks, chains or mule cops.

The usual method is to dye the yarn in the skein, hank or chain, and, in some cases, it has been dyed in the mule cop; but heretofore, attempts to dye yarn in.packages of considerable size have not been entirely successful. It has been found diflicult to secure an even and thorough permeation of the dye liquor throughout the whole mass, which is necessary to secure an even color, and it has also been found impossible to retain the cop in its original conformation,

after the dyeing, so that the yarn can be subsequently unwound. without snarling or breaking. v

Wehaved-i-seovereda method of supporting the yarn incops' and arranging the cops under compression so that the yarn mass is of uniform density throughout, and pre--.

sents a sufliciently large area on the inner surface to facilitate a thorough penetration. The liquor-or gas is' forced through the cop from the, interior opening, and in some cases withdrawn again back through 4 the yarn, by means of-suction, or it might be forced through from the outside of the cop.

It is desirable to dye a'large number of cops at one time, and in order to present an even resistance to the penetration of the liquor throughout all the cops the yarn is compressed into one solid mass. The packages are arranged end for end, with their central openings alining, and pressed together into one continuous tubular mass with a central opening. For convenience in handling it is preferable to arrange the cops in units, with from three to six cops in each unit. A number of units is then placed in 10 dyeing chamber and the liquor forced into the ipe, from which it escapes through the per orations p and flows betweenthe coils c of the tubes, through the sleeves b and into the yarn mass. One system of injecting the liquor is to close the valve at one end of the pipe and force it in at the other end. After .a suflicient flow has been secured, the inlet valve is closed and the opposite valve opened to act as an outflow,the liquor being forced or drawn back through the cops from the outside either by pressure or exhaust through the pipe P. The pipe P can also be used for forcing air through the cops to dry them after dyeing. After thecops havebeen treated they are removed by simply disconnecting the pipe P and removing the flange or head 7.

Fig. 3 shows a method of holding the cops without the use of a central pipe. With this devices such as the collars h, h, etc. These are preferably of spider form, having a suitable number, three or more, prongs or arms 2',-

which engage the interior of the coils 0 and locate the rod centrally within the openings of the cops. A flange 6 having a central opening 6 arranged opposite the opening of the inlet pipe 7, abuts one end of the end cop A and a second flange a is adapted to be pressed against the end of the opposite cop of the series, being adjusted along the rod by means of the hand nutlc. The rod r is preferably secured at 7' in the pipe 7. With this arrangement the 'dyeing liquor is pumped in through the pipe 7', circulates through the interior of the cops, and is forced radially outward into the yarn mass. It will be seen that the purpose of having the collars h of skeleton form, is to prevent them from closing the openings through the cops and obstructing the passage of the liquor.

In Fig. 4 is shown still another method of holding the cops. Two "flanges Z and Z are provided, and these are adapted to be drawn together by the rods m, m, etc., which pass through holes arranged around the outside of the flanges. The flanges are drawn together by adjusting the hand nuts n, n, etc., and the rods m, m' serve to keep the cops in alinement. The liquor is forced into the central opening through the cops from the pipe 0 which is-screwed into an opening in the flange Z.

arrangement the cops are placed on a rod 1"- which is provided with suitable centering L It will be seen that our invention consists v them longitudinally together while mechanically maintaining the opening through the center ofthe cops, and confining them under end pressure to secure a uniform density of the entire mass.

2. The'within described process of treating a column of yarn Wound in package form with a central opening, the parts of said column differing in density, consisting in applying end pressure until all parts of said column are of uniform density, me-

chanically maintaining the central opening through said column during compression without lnterfering with said compression,

and passing a fluid-through said compressed yarn. I

3. The within described process of treating yarn wound in packages compressible throughout and varying in density consisting in arranging a plurality of such packages axially in line, applying end pressure until all parts of said line are of uniform density, mechanically maintaining a central opening through said packages during com pression without interfering with said compression, and passing a fluid through said compressed packages.

4. The within described process of treat-' cops to contract the tubes and cqmpress the treating yarn wound in hollow packages longitudinally compressible throughout, consisting in supporting a plurality of such packages with their ends abutting and their openings alining while mechanically mainopening under pressure to causeit to pass tainingacontinuouscentralopeningthroughradially through'the mass, and forcing :1 out t e series of packages Without interfergas through the mass to dry the yarn. mg with their compressibility, applying 8. The within described improvement in 25 pressure to the end packages to compress preparing yarn for treatment with fluids; the entire mass longitudinally to secure a the same consisting inwinding the yarn on uniform dens'ty throughout; closing one end a' longitudinally compressible pervious of the opening in the mass and then forcing holder to form a mass longitudinally comfluid into the other end of .the opening unpressible throughout its Whole length, ap- 0 der pressure. V plying pressure to thejends of the mass to 7.'The herein described process of treatsecure a uniform density throughout its ing yam wound in hollow packages longiwhole length, and then passing the fluid tudmallycompressiblethroughout, consisting radially througthe mass.

in arrangin a series of such packages with In testimony whereof We aflix our signa- 35 their ends a utting and their openings alintures in presence of two witnesses.

ing while mechanically maintaining the JOHN C HEBDEN opening throughout the series of packages FREDERICK H A without interfering with their compressibil- 1 ity, compressing the packages longitudinally Witnesses:

-to secure a uniform density throughout the FRANK PROCTOR,

mass, forcing the liquid into the central 'Gnr CLEMENT. 

